William o



Patented May 8, 1883.

(No Model.)

W. o. eoms.

BJEGTOR POB. WELLS.

l/ /l f f. Y//

UNITED STATES PATENT OFFICE.

r.WILLIAM O. ROBBINS, OF NEW YORK, N. Y.

EqEc-ron FOR WELLS.

SPECIFICATION forming part of Letters Patent No. 277,346, vdated. May 8, 1883.

Application filed August 31, 188:2.

To all whom ltmay concern Beit known that I, WILLIAM O. RoBBINs, of the city, county, and State of 'New York,

' have invented a new and useful Improvement in Ejectors forWells, of which the following is a full, clear, and exact description.

Myinven tion relates to improvements in that class of ejectors employed to raise liquids out of wells by means of compressed air; and it consists in the peculiar construction and arrangement of the parts, as hereinafter morel fully set forth, and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming part of this speoiication, iu which similar letters of reference indicate cory responding parts in both the gures.

Figure l is a vertical sectional elevation of a well provided with mv improved ejector.

Fig. 2 is an external view of the lower part of* the ejector.

A feed-pipe, A, for the compressed air extends from the compressed-air reservoir down to the bottom of the well B, and passes partly through' ahole, a, in the top d of acylindrical or like closed vessel, C, in the bottom of the well.

on represents a bent pipe, having the end of its longer leg inserted in the lower end ofthe hole a in the top d, so that the pipes A and fm. willregister with each other, the latter lying within the vessel G.

A lengthened funnel, D, is placed over the apertured end of the pipe A, the smaller end of the funnel being secured in thelower end of the hole b in thetop d of the vessel C. From the smaller end of the funnel 4a stand-pipe, E, passing partly through the hole b in the top d, extends upward, which leads .to the tank `or reservoir. The pipes A and E are united and braced by hands or clips F. The vessel C is provided in its bottom with an'opening, which is closed by an inwardly-opening valve, G. The stand-pipe E is provided with a series ot' upwardly-opening check-valves, H, which are arranged at suit-ableintervals, according to the density of the liquid to be raised, and according to the pressure ofthe compressed air.

The operatiouis as follows: Thecompressed the pipeE,in which the liquid rises.

(No model.)

' air is forced down through thenpipe A, and issues from the lower upturned end of the same 5c into the funnel D and draws the liquid in they vessel Cinto the funnel D,and from thereinto Thecompressed air is very apt to bubble through the liquid without raising the same, and for that reason 1 have provided the check-valves H They afford such resistance to the compressed air that the same cannot rush through the pipe E without affecting the liquid, but force y the air to act on the solid cylinder ot' liquid 6o and raise the same. The check-valves Halso prevent the liquid that has been raised fron flowing back again. The check-valve Gr pret vents the liquid from ilowingout of the vessel "y 0. The check-valves used may be of any (le-.65 sired typeLthe usual puppetvalves being preferred. The pipes A and E are preferably1 made one inch in diameter, as with pipes of such size the apparatus will'be most advantageous in all respects. 7o

I am aware that one check-valve has been used in the suction-tubes ot' pumps; but the said valve is not used for the purpose for which I use the series of valves, and I do not broadly claim a check-valve in combination with a suction-pipe of a pump, Snc. i

Having thus described rnyinvention, what l claim as new, and desire to secure by Letters Patent, is

The combination, with the air-pipe A and So stand-pipe E, having a series of'check-valves, H, ot' the vessel C, provided with the upwardly-opening valve G in its bottom, and holes a b in its top to receive the air and stand pipes, l funnel D, having its upper end inserted in the lower end of the hole' b and lying within the vessel C, bent pipe in, lying within the vessel, and having its longer leginserted in thelower end ofthe hole a and its shorter leg projecting upwardly into the funnel, said bent pipe 9o and funnel forming a continuation of the air and stand pipes, substantially as described.

WM. 0. ROBBINS. Witnesses:

OSCAR F. GUNZ, W. O. RoBBINs. 

